/* Prueba*/ #include <stdio.h> #include <ctype.h> main ( ) { char x,y; x = 'A'; y = '2'; if (isdigit(x) != 0) printf ("es digito x: %c\n", x); else printf ("No Es es digito x: %c\n", x); if (isdigit(y) != 0) printf ("es digito y: %c\n", y); else printf ("No Es es digito y: %c\n", y); system ("PAUSE"); }